Mobile Differential Diff Review (2-up)

Summary:
This does two things

 - Modernizes Table of Contents
 - Makes Differential reasonable on mobile

I say resonable, as you still have to scroll horizontal to see the entire diff. This is minor as the rest of the page is 100x more useful. A 1-up view would be preferred, but this is still an improvement.

Test Plan: Used iOS simulator for browsing diffs.

Reviewers: btrahan, epriestley

Reviewed By: epriestley

Subscribers: epriestley, Korvin, chad

Differential Revision: https://secure.phabricator.com/D8681

src/applications/differential/controller/DifferentialDiffViewController.php

@@ -138,6 +138,7 @@ final class DifferentialDiffViewController extends DifferentialController {
       ),
       array(
         'title' => pht('Diff View'),
+        'device' => true,
       ));
   }
 

src/applications/differential/controller/DifferentialRevisionViewController.php

@@ -447,6 +447,7 @@ final class DifferentialRevisionViewController extends DifferentialController {
       array(
         'title' => $object_id.' '.$revision->getTitle(),
         'pageObjects' => array($revision->getPHID()),
+        'device' => true,
       ));
   }